klaptik/widgets/
tile.rs

1use crate::*;
2
3#[derive(Clone, Copy)]
4pub struct Tile<S> {
5    state: S,
6    sprite_id: SpriteId,
7    origin: Point,
8    columns: usize,
9    rows: usize,
10    sprite_size: Size,
11    invalidate: bool,
12}
13
14impl<S> Tile<S>
15where
16    S: Copy + PartialEq + Into<Glyph>,
17{
18    pub fn new<SI: Into<SpriteId>>(
19        sprite_id: SI,
20        state: S,
21        origin: Point,
22        sprite_size: Size,
23        columns: usize,
24        rows: usize,
25    ) -> Self {
26        Self {
27            origin,
28            state,
29            columns,
30            rows,
31            sprite_size,
32            sprite_id: sprite_id.into(),
33            invalidate: true,
34        }
35    }
36}
37
38impl<S> Widget<S> for Tile<S>
39where
40    S: Copy + PartialEq + Into<Glyph>,
41{
42    fn invalidate(&mut self) {
43        self.invalidate = true;
44    }
45
46    fn update(&mut self, state: S) {
47        if self.state != state {
48            self.state = state;
49            self.invalidate = true;
50        }
51    }
52
53    fn render<D: Display>(&mut self, display: &mut D) {
54        if self.invalidate {
55            let glyph = self.state.into();
56            for x in 0..self.columns {
57                for y in 0..self.rows {
58                    let origin = Point::new(
59                        self.origin.x + self.sprite_size.width * x as u8,
60                        self.origin.y + self.sprite_size.height * y as u8,
61                    );
62                    display.render(RenderRequest::new(origin, self.sprite_id, glyph));
63                }
64            }
65            self.invalidate = false;
66        }
67    }
68}
klaptik/widgets/tile.rs

klaptik/widgets/
tile.rs
